The Time for a Radar Signal to Travel to the Moon

question 20

Multiple Choice

The time for a radar signal to travel to the Moon and back, a one-way distance of about 3.8*10⁸ m, is:

• A)1.3 s
• B)2.5 s
• C)8 s
• D)8 min
• E)1 *10⁶ s

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Definitions:

Postbox Rule

A legal principle that an offer is considered accepted once the acceptance is dispatched by the offeree, not when it is received by the offeror.

Elephant Garlic

A large, mild-flavored variety of garlic that resembles a bulb of leek rather than a true garlic.

Invitation to Treat

An invitation for parties to make an offer, which can then be accepted or rejected, not an offer itself.

Breach of Contract

The violation of any term or condition in a contract without lawful excuse.